Hierarchy of RG flows in 6d (1, 0) orbi-instantons

Abstract N M5-branes probing the intersection between the orbifold ℂ2 /ΓADE and an E 8 wall give rise to 6d (1, 0) SCFTs known as ADE-type orbi-instantons. At fixed N and order of the orbifold, each element of Hom(ΓADE , E 8) defines a different SCFT. The SCFTs are connected by Higgs branch RG flows...

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Main Authors: Marco Fazzi, Suvendu Giri
Format: Article
Language:English
Published: SpringerOpen 2022-12-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP12(2022)076
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author Marco Fazzi
Suvendu Giri
author_facet Marco Fazzi
Suvendu Giri
author_sort Marco Fazzi
collection DOAJ
description Abstract N M5-branes probing the intersection between the orbifold ℂ2 /ΓADE and an E 8 wall give rise to 6d (1, 0) SCFTs known as ADE-type orbi-instantons. At fixed N and order of the orbifold, each element of Hom(ΓADE , E 8) defines a different SCFT. The SCFTs are connected by Higgs branch RG flows, which generically reduce the flavor symmetry of the UV fixed point. We determine the full hierarchy of these RG flows for type A, i.e. ℂ2 /ℤ k , for any value of N and k. The hierarchy takes the form of an intricate Hasse diagram: each node represents an IR orbi-instanton (homomorphism), and each edge an allowed flow, compatibly with the 6d a-theorem. The partial order is defined via quiver subtraction of the 3d magnetic quivers associated with the 6d SCFTs, which is equivalent to performing a so-called Kraft-Procesi transition between homomorphisms.
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spelling doaj.art-8c82072f4a8c4400980f3b1fdecd9f682023-03-26T11:04:17ZengSpringerOpenJournal of High Energy Physics1029-84792022-12-0120221216810.1007/JHEP12(2022)076Hierarchy of RG flows in 6d (1, 0) orbi-instantonsMarco Fazzi0Suvendu Giri1Dipartimento di Fisica, Università di Milano-BicoccaDipartimento di Fisica, Università di Milano-BicoccaAbstract N M5-branes probing the intersection between the orbifold ℂ2 /ΓADE and an E 8 wall give rise to 6d (1, 0) SCFTs known as ADE-type orbi-instantons. At fixed N and order of the orbifold, each element of Hom(ΓADE , E 8) defines a different SCFT. The SCFTs are connected by Higgs branch RG flows, which generically reduce the flavor symmetry of the UV fixed point. We determine the full hierarchy of these RG flows for type A, i.e. ℂ2 /ℤ k , for any value of N and k. The hierarchy takes the form of an intricate Hasse diagram: each node represents an IR orbi-instanton (homomorphism), and each edge an allowed flow, compatibly with the 6d a-theorem. The partial order is defined via quiver subtraction of the 3d magnetic quivers associated with the 6d SCFTs, which is equivalent to performing a so-called Kraft-Procesi transition between homomorphisms.https://doi.org/10.1007/JHEP12(2022)076Brane Dynamics in Gauge TheoriesSupersymmetric Gauge TheoryConformal Field Models in String TheoryM-Theory
spellingShingle Marco Fazzi
Suvendu Giri
Hierarchy of RG flows in 6d (1, 0) orbi-instantons
Journal of High Energy Physics
Brane Dynamics in Gauge Theories
Supersymmetric Gauge Theory
Conformal Field Models in String Theory
M-Theory
title Hierarchy of RG flows in 6d (1, 0) orbi-instantons
title_full Hierarchy of RG flows in 6d (1, 0) orbi-instantons
title_fullStr Hierarchy of RG flows in 6d (1, 0) orbi-instantons
title_full_unstemmed Hierarchy of RG flows in 6d (1, 0) orbi-instantons
title_short Hierarchy of RG flows in 6d (1, 0) orbi-instantons
title_sort hierarchy of rg flows in 6d 1 0 orbi instantons
topic Brane Dynamics in Gauge Theories
Supersymmetric Gauge Theory
Conformal Field Models in String Theory
M-Theory
url https://doi.org/10.1007/JHEP12(2022)076
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AT suvendugiri hierarchyofrgflowsin6d10orbiinstantons